Package: control-center-3.0.1.1-6.fc15
Architecture: x86_64
OS Release: Fedora release 15 (Lovelock)
Comment
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I was attempting to test my USB headset using the sound properties dialog. When I hit test, I got this crash. It happened every time I tried it.
I turns out that pulseaudio had gotten into a state where it didn't fully recognize my USB headset: it appeared in the hardware section but didn't appear in the input or output tabs. While trying to diagnose the problem I would hit test in the hardware section and get this crash.
After I killed pulseaudio deamon and restarted it, my headset appeared properly in all dialogs and the test button worked. I suspect that the control panel isn't handling a failure in pulseaudio.